[TenTec] Orion Noise Reduction Ability

[Gary Tuck]

Tried responding to the original query before but used the wrong  
email address and 'fraid it got stuck somewhere for review.

Certainly agree that hardware NB works very well.  Takes out power  
line noise here handily.  I have found one use for the DSP NB and  
that is with the
Asian OTH radar.  If cranked up to 9, it takes most of it out here in  
the OR.  As for the NR, opinions vary.  When I've listened to SSB
it does sound as if it works fairly well.  On CW, it distorts the  
signal and reduces the background noise to gurgles.  Actually, more
harm than good.  Running v2.059d here as well.

73, Gary W7TEA


On Mar 21, 2007, at 12:10 PM, Randy Hargenrader wrote:

> My two centalvo's...
>
> I find the NR on the Orion V2.059 to work very well.  It does an
> effective job of acting like a sort of squelch for SSB and I like the
> fact that there aren't alot of artifacts in the process.  I didn't  
> like
> the V1.372 NR function as it created a ton of artifacts reminiscent of
> an outboard DSP device like the NIR-10 and the "Hear It" speaker
> devices.  Kind of an underwater sound...
>
> The hardware noise blanker is also quite effective on pulse noises.  I
> have however found the DSP "side" of the NB to be totally ineffective.
> I have never found a situation where it makes any difference or  
> improvement.
>
> Hope this helps.
>
> 73,
> Randy
> K4QO
>
>
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